Strongly seconded. While getting good people is essential (the original point about rationality standards), checks and balances are a critical element of a project like this.

The level of checks needed probably depends on the scope of the project. For the feasibility analysis, perhaps you don't need anything more than splitting your research group into two teams, one assigned to prove, the other disprove the feasibility of a given design (possibly switching roles at some point in the process).